Question

Simplify: (5xy)(2x^2)(y^3)

7x^3y^4

8x^2y^3

10x^3y^4

none of the above

Answer 1

\( \color{Black}{\Rightarrow 5 \times x \times y \times 2 \times x \times x \times y \times y \times y }\)

Answer 2

You just group 'em

Answer 3

You can multiply 5,2... the y's, the x's :)

Answer 4

group the exponents?

Answer 5

Yeah

Answer 6

How many times does x repeat? that'd be the exponent of x. Similar for y :)

Answer 7

so its c right?

Answer 8

Yes. c is right :)

Answer 9

I'm just checking my answer for this one..

Answer 10

okay thank you.

Answer 11

\[(5xy)(2x^2)(y^3)\]
Remember you can add like exponentials that are being multiplied
\[10x^3y^4\]

Rule (sorry the formatting isn't showing correctly):
\[(\eta^A)*(\eta^B)=\eta^(A+B)\]